Comprehensive Overview of 4140 Steel Hardness

4140 steel hardness varies under different conditions. Through correct heat treatment and hardness testing methods, 4140 steel hardness suitable for different application needs can be obtained.

4140 Steel vs 42CrMo Steel Difference: Let You Choose Better

4140 and 42CrMo are commonly used alloy steel materials, and AISI 4140 is equivalent to GB 42CrMo, but they have certain differences in chemical composition, mechanical properties, and other aspects.

How to distinguish between alloy structural steel AISI 4140 and 4130 steel?

This article mainly talks about the similarities and differences between the alloy structural steel AISI 4140 and 4130 steel.